GB2052811A - Projection lamp control arrangement - Google Patents

Projection lamp control arrangement Download PDF

Info

Publication number
GB2052811A
GB2052811A GB8019289A GB8019289A GB2052811A GB 2052811 A GB2052811 A GB 2052811A GB 8019289 A GB8019289 A GB 8019289A GB 8019289 A GB8019289 A GB 8019289A GB 2052811 A GB2052811 A GB 2052811A
Authority
GB
United Kingdom
Prior art keywords
output
projection lamp
lamp
operating
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB8019289A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bell and Howell Co filed Critical Bell and Howell Co
Publication of GB2052811A publication Critical patent/GB2052811A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source

Landscapes

  • Projection Apparatus (AREA)
GB8019289A 1979-06-13 1980-06-12 Projection lamp control arrangement Withdrawn GB2052811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/048,308 US4283658A (en) 1979-06-13 1979-06-13 Projection lamp control arrangement

Publications (1)

Publication Number Publication Date
GB2052811A true GB2052811A (en) 1981-01-28

Family

ID=21953850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8019289A Withdrawn GB2052811A (en) 1979-06-13 1980-06-12 Projection lamp control arrangement

Country Status (4)

Country Link
US (1) US4283658A (de)
JP (1) JPS5632132A (de)
DE (1) DE3019669A1 (de)
GB (1) GB2052811A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285427A2 (de) * 1987-04-02 1988-10-05 Anderson Research And Development Limited Schalteinrichtung
EP1178510A1 (de) * 2000-08-04 2002-02-06 Ushiodenki Kabushiki Kaisha Projektorlampe und Verfahren zur Regulierung ihrer Helligkeit
WO2008083697A1 (de) * 2006-12-20 2008-07-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LEISTUNGSABHÄNGIGE LÜFTERSTEUERUNG ZUR VERGRÖßERUNG DES DIMMBEREICHS VON HID LAMPEN

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455510A (en) * 1982-05-20 1984-06-19 Hid Systems, Inc. High intensity discharge ballast with hot restrike performance
US4518895A (en) * 1983-03-25 1985-05-21 Xerox Corporation Mechanism and method for controlling the temperature and output of a fluorescent lamp
US4533854A (en) * 1983-03-25 1985-08-06 Xerox Corporation Mechanism and method for controlling the temperature and output of a fluorescent lamp
US4533853A (en) * 1983-03-25 1985-08-06 Xerox Corporation Mechanism and method for controlling the temperature and output of a fluorescent lamp
US4672271A (en) * 1985-04-15 1987-06-09 Omniprise, Inc. Apparatus and method for automatic operation of a high pressure mercury arc lamp
DE3623372A1 (de) * 1986-07-11 1988-01-21 Hoelter Heinz Apparat und verfahren zum zwecke der automatischen kopplung der luftmenge und temperatur in ultraviolett-/ozongeneratoren
DE3629771A1 (de) * 1986-09-02 1988-03-03 Demolux Overhead-projektor
US5150154A (en) * 1989-08-22 1992-09-22 Brother Kogyo Kabushiki Kaisha Apparatus for forming images discharge lamp and current, tone and temperature control means
JP3052318B2 (ja) * 1989-10-31 2000-06-12 セイコーエプソン株式会社 プロジェクタおよびその制御方法
US5136397A (en) * 1989-10-31 1992-08-04 Seiko Epson Corporation Liquid crystal video projector having lamp and cooling control and remote optics and picture attribute controls
US5351106A (en) * 1991-07-01 1994-09-27 Amergraph Corporation Exposure system
US5459532A (en) * 1993-03-29 1995-10-17 Seiko Epson Corporation Automatic focus adjuster for projection display systems having focus adjustment display symbols
JP3287140B2 (ja) * 1994-10-31 2002-05-27 松下電器産業株式会社 光ビーム加熱装置
JP3531483B2 (ja) * 1998-07-16 2004-05-31 セイコーエプソン株式会社 投写型表示装置
US6353295B1 (en) 1999-01-20 2002-03-05 Philips Electronics North America Corporation Lamp electronic ballast with a piezoelectric cooling fan
US6621239B1 (en) 2000-03-14 2003-09-16 Richard S. Belliveau Method and apparatus for controlling the temperature of a multi-parameter light
JP3471772B2 (ja) * 2001-07-26 2003-12-02 Ｎｅｃビューテクノロジー株式会社 プロジェクタ
AU2003302860A1 (en) * 2002-12-11 2004-06-30 Koninklijke Philips Electronics N.V. Lighting unit
JP4241194B2 (ja) * 2003-06-02 2009-03-18 三洋電機株式会社 投射型映像表示装置
US20060087622A1 (en) * 2004-10-21 2006-04-27 Brown Stephen J Projector apparatus and methods
US7294979B2 (en) * 2005-05-27 2007-11-13 Hewlett-Packard Development Company, L.P. Light source module with temperature sensor
CN2888141Y (zh) * 2005-07-22 2007-04-11 富准精密工业(深圳)有限公司 以脉宽调制方式控制转速的风扇
JP4812483B2 (ja) * 2006-03-23 2011-11-09 三洋電機株式会社 投写型映像表示装置
TWI417636B (zh) * 2010-07-02 2013-12-01 Delta Electronics Inc 投影裝置及其光源溫度調節方法
US20150162179A1 (en) * 2011-11-29 2015-06-11 Koninklijke Philips N.V. Method of calibrating a system comprising a gas-discharge lamp and a cooling arrangement
JP6524608B2 (ja) * 2013-06-20 2019-06-05 セイコーエプソン株式会社 光源装置、プロジェクターおよび放電灯の冷却方法
JP2018166068A (ja) * 2017-03-28 2018-10-25 パナソニックＩｐマネジメント株式会社 点灯装置、前照灯装置、及び車両
CN215991283U (zh) * 2021-09-17 2022-03-08 亮山企业有限公司 一种照明装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US930958A (en) * 1904-05-27 1909-08-10 Gustave L Hartung Electric glow-lamp.
US2315919A (en) * 1942-04-02 1943-04-06 Eastman Kodak Co Motor control for projectors
US4146819A (en) * 1977-08-29 1979-03-27 Union Carbide Corporation Method for varying voltage in a high intensity discharge mercury lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285427A2 (de) * 1987-04-02 1988-10-05 Anderson Research And Development Limited Schalteinrichtung
EP0285427A3 (de) * 1987-04-02 1989-03-08 Anderson Research And Development Limited Schalteinrichtung
EP1178510A1 (de) * 2000-08-04 2002-02-06 Ushiodenki Kabushiki Kaisha Projektorlampe und Verfahren zur Regulierung ihrer Helligkeit
US6759793B2 (en) 2000-08-04 2004-07-06 Ushiodenki Kabushiki Kaisha Lamp unit for a projector and a process for the light control thereof
WO2008083697A1 (de) * 2006-12-20 2008-07-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH LEISTUNGSABHÄNGIGE LÜFTERSTEUERUNG ZUR VERGRÖßERUNG DES DIMMBEREICHS VON HID LAMPEN

Also Published As

Publication number Publication date
DE3019669A1 (de) 1980-12-18
JPS5632132A (en) 1981-04-01
US4283658A (en) 1981-08-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)